American Odds (e.g., -110, +200)
Decimal Odds (e.g., 1.91, 3.00)
Please enter valid odds for all selections.
Total Decimal Odds:–
Total American Odds:–
Potential Profit:–
Total Payout:–
What is a Parlay?
A parlay is a single bet that links together two or more individual wagers and is dependent on all of those wagers winning together. The primary benefit of a parlay is the significantly higher payout compared to placing each bet individually. However, if even one leg of the parlay loses, the entire ticket is graded as a loss.
How to Use the Parlay Calculator
This tool helps you determine the potential return on a multi-leg bet across different odds formats. To calculate your parlay:
Wager Amount: Enter the amount of money you intend to bet.
Odds Format: Choose between American (e.g., -110) or Decimal (e.g., 1.91).
Individual Selections: Enter the odds for each leg of your bet. Use the "+ Add Another Selection" button to expand your parlay.
Calculate: Click the button to see your total odds and potential payout.
The Math Behind Parlays
To calculate a parlay manually, you must first convert all odds into Decimal format. Once in decimal format, you multiply the odds together. For example:
Example: A 3-leg parlay with odds of 2.00, 1.50, and 3.00.
Total Multiplier = 2.00 × 1.50 × 3.00 = 9.00.
For a $10 bet, the Total Payout = $10 × 9.00 = $90.
Converting American Odds to Decimal
If you are using American odds, use these formulas to convert to decimal:
While parlays offer high rewards, they are statistically more difficult to win. Professional bettors often use "Correlated Parlays" where the outcome of one game might influence another, though most sportsbooks limit these. "Teasers" are another form of parlay specifically for football and basketball that allow you to adjust point spreads in your favor for a lower payout.
var legCount = 2;
function addLeg() {
legCount++;
var container = document.getElementById('legsContainer');
var div = document.createElement('div');
div.className = 'leg-row';
div.id = 'leg_' + legCount;
var format = document.getElementById('oddsFormat').value;
var placeholder = (format === 'american') ? '+100' : '2.00';
div.innerHTML = '
' +
'' +
" +
'
' +
'';
container.appendChild(div);
}
function removeLeg(id) {
var element = document.getElementById('leg_' + id);
if (element) {
element.remove();
}
}
function updatePlaceholders() {
var format = document.getElementById('oddsFormat').value;
var inputs = document.getElementsByClassName('leg-odds');
var placeholder = (format === 'american') ? '+100' : '2.00';
for (var i = 0; i < inputs.length; i++) {
inputs[i].placeholder = placeholder;
}
}
function calculateParlay() {
var wager = parseFloat(document.getElementById('wagerAmount').value);
var format = document.getElementById('oddsFormat').value;
var oddElements = document.getElementsByClassName('leg-odds');
var errorEl = document.getElementById('errorMessage');
var resultsEl = document.getElementById('resultsArea');
errorEl.style.display = 'none';
resultsEl.style.display = 'none';
if (isNaN(wager) || wager <= 0) {
alert("Please enter a valid wager amount.");
return;
}
var totalMultiplier = 1;
var validInputs = 0;
for (var i = 0; i 0) {
decimalOdds = (val / 100) + 1;
} else {
decimalOdds = (100 / Math.abs(val)) + 1;
}
} else {
if (val <= 1) continue;
decimalOdds = val;
}
totalMultiplier *= decimalOdds;
validInputs++;
}
if (validInputs = 2.00) {
finalAmerican = "+" + Math.round((totalMultiplier – 1) * 100);
} else if (totalMultiplier > 1) {
finalAmerican = "-" + Math.round(100 / (totalMultiplier – 1));
}
document.getElementById('resTotalDecimal').innerText = totalMultiplier.toFixed(3);
document.getElementById('resTotalAmerican').innerText = finalAmerican;
document.getElementById('resProfit').innerText = "$" + profit.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resPayout').innerText = "$" + totalPayout.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
resultsEl.style.display = 'block';
}